40% of Raees's marks is equal to 20% of Rahim's marks, and this is also equal to 30% of Rehman's marks. If Rehman's marks are 80, find the average marks of Raees and Rahim.
Q1. 40% of Raees's marks is equal to 20% of Rahim's marks, and this is also equal to 30% of Rehman's marks. If Rehman's marks are 80, find the average marks of Raees and Rahim.
Answer: 90
Explanation: 30% of Rehman (80) = 24; Raees = 24/0.40 = 60; Rahim = 24/0.20 = 120; average = (60+120)/2 = 90.